Siemens programming the cpu 314c-2dp manual Automation and Drives SCE

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Automation and Drives - SCE

17.'LAD/STL/FDB Program S7 Blocks’ is an editor which allows you to create your STEP

7program as you require. To this end, the OB1 organization block with the first network has already been opened. In order to create your first logic operations, you must mark the first network. Now you can write your first STEP 7 program. Individual programs are usually divided

into networks in STEP 7. You open a new network by clicking on the network symbol, .

Note: Comments regarding program documentation are separated from the program commands by the characters "//".

The network

L

MB 100

 

T

AB 0

loads the clock memory byte activated in the hardware configuration and transfers it to an output byte. As a consequence, the 8 bits of the output byte flash in the different frequencies of the clock memory bits.

Note: The address of the output byte can be different from case to case, depending on the hardware configuration.

Foreword

Notes

Hardware configuration

STEP 7 program

Testing

 

 

 

 

 

 

 

 

 

T I A Training Document

 

Page 23 of 25

 

 

Module

 

 

 

 

 

A5

Issue date: 02/2008

 

 

Programming the CPU

314C-2DP

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Contents Module A5 Automation and Drives SCE Foreword SeiteLearning Objective ForewordTo 3 days Module C To 3 days Module D Frequency Converter at Simatic S7Hardware and software needed Automation and Drives SCE Operator control and display elements Operating the Cpus 31XCSlot for the Simatic Micro Memory Card MMC Status and fault/error displaysMode selector Positions of the mode selectorRAM Memory Areas of the CPU 31XCIntroduction Load memoryRetention of the memory objects Work memory RAMCPU Creating the Hardware Configuration for the CPU 314C-2DPAutomation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Bit Writing a ProgramAssignment list Automation and Drives SCE Automation and Drives SCE Testing the Program Automation and Drives SCE